Steam-boiler



(No Model.) 2 Sheets-Sheet 1.

R. B. VAUGHN. STEAM BOILER.

No. 499,948. Patented June 20, 1893.

NI I

7 l fij enivr 7 4 (No Model.) 2 Sheets Sheet 2.

' R. B. VAUGHN.

STEAM BOILER.

No. 499,948. \l Patented June 20, 1893.

UNITED T STATES PATENT OFFICE.

RALPH BROOKS VAUGHN, OF KINGSTON, PENNSYLVANIA.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 499,948, dated June 20, 1893.

Application filed January 14, 1893. 7 Serial No. 458,410. (No model.)

a citizen of the United States, residing at.

Kingston, in the county of Luzerii'e and State of Pennsylvania, have invented certain new 1 and useful Improvements in Steam-Boilers;

and I do declare the following to be a full, clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to steam boilers, and has for its object to produce a boiler in which the steam will be quickly generated with a small consumption of fuel, and will be dried in the furnace before being distributed, and to generallyimprove the construction of such a boiler so that it will be simple in-construction and efiicient in use; and .to the accomplishment of the foregoing and such other objects as may hereinafter appear, the invention consists in the construction and in the combination of parts hereinafter particularly described and then specifically defined in the claims, reference being had to the accompanying drawings forming a part hereof, and in which Figure 1 is a vertical section through the boiler, on the line 1.l of Fig. 2. Fig. 2 is a horizontal section on the line 2-2 of Fig. 1. Fig. 3 is a vertical section on the line 3-3 of Fig. 1; and Fig. 4 a section on the line 4-4 of Fig. 1.

In the drawings the letter A designates the walls of the furnace constructed preferably of brick or masonry and provided with the door B for feeding fuel to the fire grate O and with the door D opening into the ash pit E. The furnace is provided preferably with a metallic top F and is formed above the space over the fire grate with a chamber G for a purpose hereinafter described, which chamber is provided with the metallic top or cover H. The furnace is also provided with a bridge wall I which separates the fire chamber from the space or chamber J through which the products of combustion pass on their way to the escape or draft flue K, and

I this chamber J is provided with a metallic bridge wall so as the better to concentrate the heat of the escaping products of combustion around the lower portion or legs of the water tube. Within the furnace are arranged a number of tubes M, the same being built up or nested to the number desired and arranged with the desired number side by side, there being illustrated in the drawings five tubes in each row, and five rows one above the other. It is preferred to arrange the several rows so that the tubesof one row will lie over the spaces between the row next below so as to bring the heat and products'of combustion into contact with the tubes of each row by causing the circulation to pursue a circuitous course, thereby utilizing the greatest amount of heat before the products escape from the furnace.

The tubes are arranged so as to incline upwardly from their lower ends, and their upper portions are projected at an angle to their length so as to rise uprightly or vertically as shown at N, the upright portions N above the water line receiving the steam generated from the water in the tubes and lying within the chamber G so that the heat from the furnace which rises into the chamber G and by it conplate or partition L just below the top of the fined around the portions of the tubes containing the steam will dry the steam in such portions of the tubes before it is allowed to pass to the distributing pipes. Thetubes M are also arranged so that their lower ends will lie intermediate of the fire chamber and the exitor draft flue K so that the products of combustion will pass from the fire chamber to the lower ends of the tubes and around the same in passing to the draft flue K. By this arrangement 1 cause a direct draft from the fire chamber to the draft fiue and around the lower ends of the tubes so that the strongest or most intense heat is applied where it will do the most effective work, that is, ator near the point wherethe water first enters the tubes. In order to more effectively concentrate the products of combustion around this end of the tube, I form a wall 0 over the top row of tubes adjacent to the chamber J as illustrated in Fig. 1 of the drawings so that the products of combustion in escaping are concentrated around and about the tubes at their lower ends and in the direct line of passage from the fire chamber to the exit or draft flue.

The lower ends of the tubes are each connccted to a T P, and the several Ts are connected to each other by nipples Q so that the several pipes of each row of tubes are connected togetll-erih otde'r that there may he" a farm channels or chambers at opposite sides of the tier of tubes having? communication with the" transverse channels or chambers forined by the Ts P. It wilt he observed that by this constructioneach rowof tu'besM has" conimu-nieationwith the side channels or chambers formed by the TsBr at opposite sides or the tier of tubes so that edm-munioa tion is not only had between all the tubes (it the tier but each row of tubes M has conimnnicationwith the side channels or chambers independent of the other news of the tier of tubes. This affords-a more direct flew of wa ter from the supply to each row of the tier of tubes, and also affords a greater heatiitgi surface so that te water is mere quiikly" heateda-fiter its entrance from thi s'h'ppl-y The construction also admits of the parts hreing more readily detached and disconnected from one another when ne'eessari from: any caiise; and any one of the several rows can lie disconnected from communication with the others when desirable for any reason without interfering with the working of the other rows of the tier. It will also be ob E served that the point atwhich the water fromtlie' su p'ply through the supply pipe U is admitted is hearerto the fire chamber. than the other portions of the tier of tubes sothat the strongestheat is applied where it is most; needed, the lower ends of the upper rows of tubes being farther removed as the water is sonrew'ha't heated before it reaches them and consequentlyiequi'res not so high a tempera ttireofheat but still they are in the direet line of the products of combustion on their way to the draft flue K. By" this arrange merit I get the inost eifective heating of the water with the least consumption of fuel.

The upright or vertical portions N of the tier of tubes communicate through the chat-- nels formed by the TS at their ends; with the Ts V through the nipples W, the Ts V being connected with each other by the ni pl'es X.- The series of Ts V fornra charm her into which the steam passes from the up right, portions N of the tier of thbesand-from this chamber the steam passes through aipipe Y into the distributing pipe Z. It will be obit serves ti -ache" stea th enam ber or drum formed by the Ts V as well as the upright portions .of the tier of tubes is located in the steam drying chamber G so that the steam in the i vertical portions of the tubes andin the steam tributing pipe. It will be observed that the water line of the tier of tubes is below the steam drying chamber G so that the whole force of the heat confined in that chamber i mos-t efiectually dries the steam in: the upright portions of the tubes and in the steam s time wasted that chamber.

' A safety valve A and a steam gage Bconnect with the steamehamber or drum, and a which areapptieu in" the usual way for the a usttai purposes? tails of cunstruetiofi-i at the several panama the arrangement ell parts Whioh Ihave friend 1 in practieet o gi veiihe bestresnIts;bt1-t it is ;obvi-us-thafiehanges maybe made and the i essentials of my invention be still employed. h Having described my" invention and set i fortlrits merits twhat I claim is l .1. The combination-With the retirees provided with a steam drying chamber over the ifire has: and sleeve the water l nreand with ftfid exit or draft use in the ugiposite waneef i the inmate to the llitiatibrrof flie fi rebhi and gin a higher plane than said: bemof the tierof if water tubes" inclining upwardlyfironrthei r re- ;eeiving ends and thinner with uprightportions extending. at eagle tothe manned pertions and. above the watei'lihe into the steam drying. chainberand communicating ew'ith the steam distributing pipette luwer portions of theieehued tubes hei ng one above the other to form wtierrisingfrom the fire box toward the draft flhe; substantially as and for the purpesee (resented 2. Theeombiu atiuii wan thefurna'ee formed with the chamber G above the-firebox and the i waterline and with the hamherJ havin the draft flue K,-a-nd the lower bridge- I an upper" wall 0 between the fi-l'' box and chamber J, ot the tier of inotiired water tubes having 1 their lowei portions extending through the space between the bridge I and wall- 0 into i the chamber J and their upper" portions extending at an angle to the intimation er the antes into the shaman G above the water line and communicating! with the steam distributing pipe, substantially as and for the purposes deseribedt- 3; The cornbihatieniwithafurn aeeandside tehembere ur the tier of water whee-havin the lower ends of each row'o'fi tubes'connected :together and withtlie side chambermeaeh t row ,eontunicating with said sie chambers independently of the other" rows}. the upper portions of the. tubes being ektenddnprightly toyth e ihelind pnrtibfnsof that-tithes I and cemented with a steam eliarnhernrdrum communicating 'with the steam distributing a drum is (tried before its passageinto the diswater ga e o with the water tubes; all of I described with permanent-y we dearranged pipe, substantially as and for the purposes described.

4. The combination with the furnace, of the tier of inclined Water tubes having their upper portions extended at an angle to the inclined portions, the Ts P coupledtogether at opposite ends of each row of the tier of tubes and having the tubes communicating therewith, and the Ts R and V at the opposite IO ends of the tubes to one side thereof respect ively coupled together and having the Ts P at the ends of the tubes communicating therewith, substantially as and for the purposes described.

In testimony whereof I affix my signature in I 5 presence of two witnesses.

. RALPH BROOKS VAUGHN.

Witnesses:

C. V. EDWARDS,

A. H. Goon. 

